Question about Hurricane general assembly drawings

All the drawings I have the circled numbers that start ‘A’ – ‘G’ are cross referenced with specific drawing numbers which invariably relate directly to part numbers, as others have stated. The letter refers to the specific size/scale of the drawings.

As an example I recently came across a photograph of a Hawker Typhoon part, it was believed to be a from the wing. The part number D96131/3 was stamped on it. I have this drawing number (the slash representing port/starboard) and I could identify this as part of the rear spar for the tail plane.

The numbers in the small circles are item numbers for the parts on the parts list, which may be in a panel on the GA, but is more likely on a seperate parts list drawing. Alongside each item number on the parts list would be that part’s full description, part number, drawing number, quantity required etc (I’ve even included stores bin reference on some Parts lists I’ve drawn up)

Hi Ross,

Think you will find that there was a industry standard on both layout and how the information was laid out on drawings within the aeronautical engineering industry.
This meant any engineer could read any drawing from different companies without having to have a symbol index at the side to say what a particular symbol etc meant.

jay

Looks the same as Supermarine drawings..

That is about right. The AGS is Aircraft General Spares. The other numbers can be the part numbers (i.e. A…….). For example, the body of the boost t i t is that part no. (A number). You can tie these into the Vol 3

Well the larger circles seem to contain part numbers (for instance AGS xxxx) while the smaller circles contain what could be references to a list of notes probably somewhere else on the drawing.